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 <p>Evgeny Poberezkin</p>
 <h1 id="simplex-chat-protocol" tabindex="-1">SimpleX Chat Protocol</h1>
 <h2 id="abstract" tabindex="-1">Abstract</h2>
-<p>SimpleX Chat Protocol is a protocol used to by SimpleX Chat clients to exchange messages. This protocol relies on lower level SimpleX protocols - SimpleX Messaging Protocol (SMP) and SimpleX Messaging Agent protocol. SimpleX Chat Protocol describes the format of messages and the client operations that should be performed when receiving such messages.</p>
+<p>SimpleX Chat Protocol is a protocol used by SimpleX Chat clients to exchange messages. This protocol relies on lower level SimpleX protocols - SimpleX Messaging Protocol (SMP) and SimpleX Messaging Agent protocol. SimpleX Chat Protocol describes the format of messages and the client operations that should be performed when receiving such messages.</p>
 <h2 id="scope" tabindex="-1">Scope</h2>
 <p>The scope of SimpleX Chat Protocol is application level messages, both for chat functionality, related to the conversations between the clients, and extensible for any other application functions. Currently supported chat functions:</p>
 <ul>